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2 Sheets-Sheet 1. G. B. KELLY. Apparatus for Cutting Pattern-Plates tobe used in the Manufacture of Perforated Music Sheets.

No. 223,676. Patented Jan. 20, 1880.

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F RS, PHOTO-UTHOGRAFHER. WASHINGTON, D G.

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. G. B'. KELLY. Apparatus for Cutting Pattern-Plates to be used, in theManufacture of PerforatedMusic Sheets.

No. 223,676. Patented Ja n. .20,

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N.PETERS, PHOTO-LITHOGRAPHER, WASHINGTON. DV (2 UNITED STATES PATENTOFFICE.

GEORGE B. KELLY, OF BOSTON, MASS, ASSIGNOR TO THE MECHANICAL ORGUINETTECOMPANY, OF NEW YORK, N. Y.

APPARATUS FOR CUTTING PATTERN-PLATES TO BE USED IN THE MANUFACTURE OFPERFORATED MUSIC-SHEETS.

SPECIFICATION forming part of Letters Patent No. 223,676, dated January20, 1880.

Application filed June 14, 1879.

To all whom it may concern Be it known that I, GEO. B. KELLY, of Boston, in the county of Suffolk and State of Massachusetts, have inventeda new and useful Apparatus for Cutting Pattern-Plates to be used in theManufacture of Perforated Music-Sheets, of which the following, taken inconnection with the accompanying drawings, is a specification.

My invention relates to the production of patternplates to be used asguides for the cutting-punches, and to determine the loca "tions of theseveral perforations to be made in the manufacture of perforatedmusic-sheets for use on mechanical musical instruments.

I have found by practical test that the per forated music-sheets now inquite general use in connection with mechanical musical instruments canbe produced at a much less cost by cutting the perforations .while thesheets of paper are wet or in a damp state, as described in anotherapplication ofeven date herewith;

' but as the strips of paper, when in such damp state, are considerablywider than the original music-sheet cut by the musician who arranges themusic, and which is to be used as a guide in producing a permanentpattern having sufficient thickness and strength for use in cuttinglarge quantities of said music-sheets, it be- 0 comes necessary to outthe permanent pattern of a width corresponding to the Width of thesheets of paper when wet.

To this end my invention consists in the use, in combination with acutting block, of a 3 5 clamp for holding the original music-sheet and Ithe sheet of straw-board firmly in position, one upon the other, so thatthere can be no slip between them, and a gage provided with a series ofslots corresponding in number to the number of the longitudinal rows ofholes in the original or pattern music-sheet, and a distance apartgreater than the lateral distance between the openings in said originalmusic-sheet, as a means of determining the 5 positions transversely ofthe perforations to be cut in the straw-board.

Figure l of the drawings is a plan of my improved apparatus with theoriginal musicsheet in position on the straw-board sheet, and

showing the straw board sheet partly cut. Fig. 2 is a verticallongitudinal section on line- 00 x on Fig. 1. Fig. 3 is a verticaltransverse section on line y 3 on Fig. 1. Figs. 4 and 5 are,respectively, a plan and edge view of the strawboard pattern sheetpartly out, and Figs. 6 and 7 are, respectively, an end view and alongitudinal section of a punch used in cutting the peforations in thestraw-board.

A is the main cutting block or anvil, made of wood, preferably with thegrain of the wood perpendicular to its upper surface, and in practicemade of sufficient length and width to support the whole of the sheet tobe out thereon. The upper surface of the block Ahas secured thereto thethin plate or sheet B, preferably of straw-board, upon which is placedthe material to be cut, and which receives the edge of the cutter as itpasses through the material to be out.

Heretofore the cutting has been done di- 0 rectly upon the end of thewood; but it has been found that in a short time the surface of the woodbecomes unfit for use, and it becomes necessary to plane off the wholesurface of the block to a sufficient depth to remove the iudentationsmade therein and obtain a good cutting-surface again. This is somewhatexpensive, on account of the labor attending it but in addition to thatthere is the loss of the use of the apparatus whilethe block is beingplaned off, and the block is being gradually but surely worn away, andafter a while has to be renewed altogether.

The straw-board sheet is comparatively inexpensive, makes a goodcutting-surface for a considerable time, and when no longer fit for acutting-surface is of some value foruse for other purposes, and may bereadily removed from the block and another sheet secured thereon withbut a few moments delay.

O 0 are a pair of side rails, connected together by the cross-ties D D,so as to form a frame, which is clamped to the block A by means of thehasps E E and pins FF, in such a manner that the bars or tiesD D shallbear with considerable force upon the original musicsheet G and pressit, with the straw-board sheet H, hard upon the cutting-block, the railsO O projecting above the upper surface of the strawboard sheet Hsufficiently far to serve as guides for the gage I as it is moved fromone position to another.

The gage I consists of the metal bar a, having cut in its edge a seriesof slots, Z), corresponding in width to the width of the hole 0 in theoriginal music-sheet G, and in number to the number of longitudinal rowsof holes formed in said sheet, and the two guide-bars d d, and is placedupon the original or pattern in usic-sheet G with the outer edges of theguide- .bars 0 0 bearing against or guided by the rails O O.

The operation of my invention is as follows:

The original music-sheet G being placed upon" the straw-board sheet Hand about centrally thereon, as shown, the two are placed upon thestraw-board covered cutting-block A, and the clamping-frame (J O D D isplaced in position on said block and secured thereto by the hasps E E.The gage I is then placed in position between the rails O 0, withtheslots b b over holes in the music-sheet G, though not exactlycoinciding therewith widthwise of the music-sheet. Ahole is then punchedthrough the straw-board by placing the cutting end of a punch similar tothe one shown in Figs. 6 and 7 in one of the slots 1), where the hole inthe music-sheet indicates thata hole is required, and giving it a blowwith a mallet. This is done at each slot b where an opening in thepattern-sheet is seen, using such a punch as the length of theperforation in said patternsheet indicates should be used, the punchcutting out more or less of the stock .of the pattern-sheet upon oneside or the other, or exactly corresponding with the perforations insaid sheet, according as the perforation is in the center of the widththereof or farther removed from said center toward one side or theother.

When all of the holes have been punched that are required in thattransverse row or line, the gage I is moved to the next transverse row,and the operation is repeated, and so on till the whole tune is cut.

The dotted lines across the openings 0 in Fig.

1 indicate the outer limit of said openings in the pattern-sheet Grbeibrecutting the holes in the straw-board sheet, as above described.

\Vhat I claim as new, and desire to secure by Letters Patent of theUnited States, is 1. The combination of the cutting-block A, patternmusic-sheet Gr, clamping-frame G D, and the gage I, all arranged andadapted .to operate substantially as described.

2. As a means of determining the proper position of the perforations ina pattern-sheet for cutting perforated music-sheets While in a wetstate, the combination of a pattern music-sheet of the desired Width tobe used in the instrument to determine the longitudinal distances of theopenings, and a gage provided with a series of slots corresponding innumber and width to the number of longitudinat rows of openings desiredand the Width thereof, to determine the lateral position of saidopenings, substantially as described.

Executed at Boston, Massachusetts, this 13th day of May, A. D. 1879.

GEO. B. KELLY.

Witnesses:

N. O. LoMBAR E. A. HEMMENWAY.

